Speakers & TOPICs

PENNSYLVANIA MINING PROFESSIONALS
  • Home
  • Resources
  • Events
  • Blog
  • Contact

Evaluation of Stress Control Layout at the Subtropolis Mine, Petersburgh, OH

6/12/2019

0 Comments

 
​Speaker: Dr. Anthony Iannaccione Associate Professor, Civil and Environmental Engineering Department, University of Pittsburg. ​

​The Subtropolis Mine is a room-and-pillar mine extracting the Vanport Limestone (Allegheny Formation, Pennsylvanian System) near Petersburg, Ohio.  The rooms are nominally 40 ft. wide and 16 ft. high.  In February of 2018, mine management began implementing a new mine layout to better control the negative effects of excessive levels of horizontal stress. 
 
‘Stress Control’ mine layouts evolved at mines suffering from strata instabilities, resulting in experiments utilizing methods to mitigate adverse impacts.  Jack Parker was able to write about personal experiences at the White Pine mine in Michigan and formulate a basic framework for the ‘stress control layout’.  Various research at the USBM, MSHA, and NIOSH have studied its effectiveness over a wide range of geologic conditions.  While this design approach has proven successful in many categories, it is difficult to implement and can concentrate stresses in crosscuts.
To help better understand these issues, NIOSH and East Fairfield Coal Company are cooperating on a research project at the Subtropolis Mine.  This project consists of detailed in-mine mapping in conjunction with state-of-the-art 3D Dynamic LiDAR scans by Mine Vision Systems.  These methods are being used to determine the efficiency and effectiveness of this engineering intervention towards lowering potential injuries from strata instabilities.
0 Comments

    Archives

    March 2022
    December 2021
    September 2021
    June 2021
    March 2021
    December 2020
    September 2020
    June 2020
    March 2020
    December 2019
    September 2019
    June 2019
    March 2019
    December 2018
    September 2018
    June 2018
    March 2018
    December 2017
    September 2017

    Categories

    All

    RSS Feed

Powered by Create your own unique website with customizable templates.
Photo used under Creative Commons from James St. John
  • Home
  • Resources
  • Events
  • Blog
  • Contact